Sudapan,
Why is the cost so much higher if you get them the next year?
Because someone else has had to get them through the winter, thats why. Producing a dozen nucleus boxes is a big logistical challenge for a local association.
A couple of points on the thread so far
1. £150 for 50 hours of training sounds very good value to me. I've seen one day starter courses being sold for £120
2. You can spend a lot of money doing things on the cheap. Round here all colonies have varroa infestation but there are much worse pests. Managing pests is a continuous war which you have to be on top of or you lose first production and then the colony
3. The tories at our local authority privatised the pest control service some years ago. By privatised I mean that they give you a list of blokes with a van and a ladder and you pay. Bee swarms are referred the local BKA. A member will go out to collect it, but by June there's rarely any spare kit to house them. 2011 was a record year for swarms around here: they started early and went on late. So that's why it can be cheap and easy to get bees in July.
4. It's easier if you share some of the kit and bulk buy. A big extractor is so much easier to use but is expensive and needs storing. Labels and jars are cheaper bought in bulk etc etc.
When you get past the early spend Bee keeping can be done very cheaply. But everyone needs help to get started and handle the setbacks, confusions and complications. I remember when we first went to the apiary seeing a mountain of supers on one old codger's hives. He was producing 2 to 3 times the honey output of any of the new beekeepers while apparently doing the same work. What he was also doing was offering 30 years of experience for nothing so that others might do the same.